Suspender-buckle.



No'. 630,050. Patented Aug. I, |899.

-S. K. GROVEB.

SUSPENDEB BUCKLE.

(Applicafzon Med May 18* lilfI (N0 Model.)

Fig'. Pag-'.2

Ill q WITNEEEZE.' IN1/ENTER;

UNrrnp STATES PATENT OFFICE.

SAMUEL K. GROVER, OF PROVIDENCE, RHODE ISLAND.

SUSPENDER-BUCKLE.

SPECIFICATION forming part of Letters Patent No. 630,050, dated August 1, 1899.

Application iiled May 18,1899. Serial No. 717,337. (No model.)

l/ b (tl r11/tom it may concern/ Be it known that I, SAMUEL K. GRovER,

of Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Suspenderuckles; and I hereby declare that the following` is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, forming part of this specilication.

This invent-ion has reference to the class of bucklesin which a clamping-plate is provided with teeth for engagement with the webbing; and it consists in the peculiar and novel construction of the buckle whereby in securing the webbing the teeth are pressed into the webbing while supported on a yielding springsurface, as will be more fully set forth hereinafter.

Figure lis a view ofthe back of the buckle, showing the clamping-plate raised. Fig. 2 is a view of the sanie, showing the clampingplate in the locked position. Fig. 3 is a top view of the buckle-frame. Fig. 4- is an edge view, and Fig. 5 an end View, of the saine. Fig. 6 is a sectional view of the buckle, showing the strap or webbing secured by the same.

Similar letters of reference indicate corresponding parts in all the figures.

In the drawings, a indicates the front plate; b, the frame of the buckle; c, the clampingplate; d, the strap or webbing.

The front plate a may be of any desired shape and is preferably stamped up out of sheet metal into some ornamental shape. The buckle-frame is also stamped up out of sheet metal. The bars b, Z22, and b3 are convex on the upper surface and concave on the lower surface. The central bar b4 is formed by separat-ing the sheet metal along the bars Vb' and b3 and bending the same into the V- shaped forin shown in Figs. 5 and G, presenting a rounded edge at the apex between the two inclined sides of the bar. On the opposite ends of the bar b3 the pintles b5 are formed, and the ends of the plate are bent down to form the supports bf. By stamping the frame b in suitable dies into the shape shown the sheet metal is hardened and a spring temper is imparted to the whole frame and particularly to the inclined surfaces of 'the central bar lf.

The clamping-plate c, which is also stamped up out of sheet metal, has the end plates c c bent at right angles to the plate and perforated, so as to extend over the pintles b5 b5 on the bar b3 of the frame, and this forms a pivotal connection between the clampingplate and the frame. The clamping-bar c2, provided with teeth, as it swings on its pivotal connection with the frame b has the points of its teeth in close contact with the inclined side of the central bar b4. The end supports h6 of the frame are secured to the back of the plate a by solder or in any other suitable manner.

When the strap or webbing d of the suspender is to be passed through the buckle, it is inserted between the bar b of the frame Z1 and the inclined surface bx of the central bar b4, which inclined surface bx is pushed sufficiently away from the bar b to permit the passage of the strap or webbing. The strap or webbing is now passed over the apex of the bar b4 and between the inclined spring-surface b" of the central bar b4 and the bar b3, the inclined spring-surface by yielding to the passage of the strap or webbing d. The clamping-plate c, which has been raised into the position shown in Fig. l, is now swung intorthe position shown in Figs. 2 and 6. The teeth on the clamping-bar c2 penetrate the strap or webbing and the strap or webbing is firmly held in the teeth of the clamping-bar by the inclined spring-surface by of the central bar b4, as is shown in Fig. 6.

The clamping-plate c is provided with the slot c3, in which the end of the strap or webbing CZ is secured.

By the use of the inclined spring-surfaces bx and by of the central bar b4 the buckle is held in any position to which it may be adjusted on the strap, and in swinging the clamping-plate c into the locked position the teeth of the clamping-bar c2 enter the strap or webbing and hold the same firmly against strain in the adjusted position. By reason of the yielding of the inclined surfaces on the central bar b the operation of swinging the clamping-plate is materially facilitated, and the strain on the webbing when the teeth enter the same is not as liable to injure the webbin g supported on the inclined spring-si'lrface,

IOO

which slightly yields to the strain, as it was in buckles as heretofore constructed provid-ed at this point with a groove or slot, the rigid l. In a suspender-buckle, the combination with the plate aand the buckle-frame b provided with the bars Z2', b3 and the central bar b4 having the inclined surfaces bx and by, of the clamping-plate c provided with the clamping-bar c2 pivotally connected with the frame; whereby the strap, or webbing, is supported on the inclined sp1-in g-snrfaces of the central bar, as described.

2. In a suspender-buckle, in combination with a clamping-plate, of the buckle-frame b having the bars U, b3 and the central bar b4 2o having the inclined surfaces bx and by extending from the apex of the central bar; Whereby the webbing is supported on the springsurfaces of the central bar, as described.

In Witness whereof I have hereunto set my 25 

